2003 Toyota 4 Runner Ac Relay . Air Conditioning Operation The A/C control assembly receives various signals, I. All you have to do is press the button, and cold and refreshing air will fill your cabin. Toyota 4runner Ac Relay Location (Eugenia Salazar) Air Conditioning Operation The A/C control assembly receives various signals, I. Info: Select your make and model in the red title bar above so we can show the parts you need. The don't look like the relay shown in the service manual. Hoping to strip a few parts for this repair. Info: Select your make and model in the red title bar above so we can show the parts you need. Toyota 4Runner Relay; relay assembly. Cowl, seat, rhd ... A/C Light Flashing and No Cold Air: 2003 Toyota 4Runner ... Amazon.com: Genuine Toyota (90987-02022) Relay: Automotive